Attachment for planes



Oct. 21, 1952 K. D. WHITE ATTACHMENT FOR PLANES Filed Aug. 9, 1949 ATTV.

Patented Oct. 21, 1952 UNITED STATES PATENT mm;

Application August 9, 1949, Serial No. 109,360

.7 Claims.

This invention relates to an attachment for a surfacing plane and it isprimarily an object of the invention to provide an attachment of thiskind for planing the bottom edge faceof a closure member, such as adoor, while the same is still hung.

It is also an object of the invention to provide an attachment of thiskind including a blade v other.

sure member,

which is positioned to one side of the plane when the attachment isapplied and which blade is adaptedto be inserted between the bottom edgeof the closure member and an adjacent fioor surface to shave said bottomedge face of the closure member to free said bottom edge face fromsticking to the floor or other surface.

A provide an attachment. of this kind embodying means for shaving thebottom edge face of a closuch as a door, without removing the same fromits hinges or other mounting.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improvedattachment for a surfacing plane whereby certain important advantagesare attained, as will hereinafter be more fully set forth.

In order that the invention may be better understood, Iwill now proceedto describe the same with reference to the accompanying drawings,wherein:

Figure l is a view in side elevation of an attachment constructed inaccordance with an embodiment of the invention, a portion being brokenaway and an associatedplane being indicated by broken lines, a doorbeing indicated in fragment;

Figure 2 is a view initop plan of the attachment as illustrated inFigure 1, a portion being broken away: and the plane being alsoindicated by broken line and the door shown in fragment;

Figure 3 is a'view in front'elevation of the attachment with the planeindicated by broken lines and the door in fragment, and

Figure 4 is a vertical sectional view taken substantially on the line4-4 of Figure 2, looking in the direction of the arrows.

In the accompanying drawings, P denotes diagrammatically a conventional"type of plane for wood surfacing having side walls Lextending fromsubstantially one end of the plane to the The attachment ashereinembodied is operatively engaged with the forward portion of the planeand when the attachment is in use, theusual blade of the plane isremoved.

' As illustrated in the accompanying drawings, the attachment comprisestwo parallel straight extending outwardly are formed transversely acrossmembers 2 and 3 coextensive in length and of a length to extend from thefront end of the plane P, through a substantial portion of the lengththereof. These members 2 and 3 are spaced apart a distance greater thanthe width of the plane P so that when the attachment is applied, themembers 2 and 3 will extend along the outer faces of the walls I of theplane P, in close proximity thereto.

The members 2 and3 have their opposite faces fiat-with their upper andlower faces coplanar and the. members 2 and 3 are maintained in desiredspaced relation by the rigid cross members 4, resting upon the top edgesof the members 2 and 3. The cross members 4 are held in position by thebolts 5 or the like and have end portions 6 extending outwardly beyondthe side member 3.

Also bridging the space between the members 2 and 3 at a pointsubstantiallymidway of the cross members 4, is an upstanding archedrigid cross member I, resting on the members 2 and 3 and securely heldthereto by the bolts 8, or the like. The member I also has an endportion 9, beyond the member 3, said being of a length substantheextended extended portion 9 tially equal to the length of each ofportions 6, of the cross members 4.

Threading through the side member 2, at desired points spaced therealongare the binding or holding screws H, the inner ends of which bearagainst the adjacent side wall l of the-plane P, to effectively securethe attachment on the plane.

The 0 ter face of the side member 3 is provided transversely thereacrosswith the dovetail guide slots H, herein disclosed as two in number andlocated in the end portions of the member 3.

Snugly and slidably engaged in the slots are the dovetail. keys l2,which stand out from and the inner side face of an elongated blockmember or head Hi. This member or head M is of approximately the samelength as the member 3 and is rectangular-in cross section with itsbottom face a at right an-' gles to the outer face of the member 3. Theunder .or bottom-face a of the member or head I4 is longitudinallyarcuately bowed downwardly with the high point of such bowedsurfa'cemidway of the ends of the member or head it. I

Underlying. the member or head I4 is a longi tudinal marginal'portion ofa cuttingblade B. The blade B is oblong in plan and of a lengthsubstantially equal to the'lengthof the member or head l4 andis held tothe member or head [4 by the bolts l5. Each of the bolts [5 is freelyapplied through a hole 16 in the member or head 14 with the lower orfree extremity thereof threading into the blade B. The head 11 Of thebolt [5 contacts an internal shoulder I8 within the upper portion of thehole l6, so that upon requisite rotation f the bolts 15, the blade B,owing to its inherent resiliency may be adjusted, within certainlimitations, toward or from the bottom or under surface a of the memberor head M as may be required.

Freely disposed from above through the extended portions of the members4 are the elongate screws l9 which thread into the end portions of themember or head l4. Interposed between each extended portion 6 and theadjacent end portion of the member orhead I4, is an expansible membercoil spring of requisite tension encircling a screw [9. These springs 20constantly urge the mem her or head I 4 downwardly to the limit of itsmember or head I either upwardlyor downwardly on the screw 2 I.

The blade B is of a thickness at all points therealong to be insertedbetween the lower edge faceof a door D or other closure member and thefloor or other adjacent surface. The blade B isalso of a width, andparticularly at the end portions thereof, to extend entirely across andbeyond the lower edge face" of the door D. Each extremity of the bladeB, is upwardly beveled, cutting edge at each end of the attachment canbe emother without the necessity of taking the door D off-of its hingesor other mounting.

It is to be noted that the outer endfaces of the-extensions 6 and 9 aresubstantially flush or outer face of the member or head l4 so that saidextensions 6 and 9 and mempositionwith respect to the doorD- .It i alsoto be noted: that the structure of the attachment is such that it can beapplied. to the the blade B extend forwardly and-laterally of. the planeas may be desired.

The member 1 is; upwardly arched to. allow bridging of the. central.high points of the side walls I of the plane P.

be self-evident that it can, be used separately and independently of theplane.

When' the invention i employed separately or independently of the plane,the members 2 and 3, with, of course, the cross members; 4 and 1, con.-stitute'a carrier for the blade 3.. Thecrossmem- 2!], herein disclosedas a.

bers 6 and I readily serve as hand grasps to effect the desired strokingof the blade B although, if desired, an additional handle may beemployed (not illustrated). As the use of such an extra handle isbelieved to embody only mechanical expediency, an illustration thereofin the accompanying drawings is believed unnecessary.

I claim:

1. In combination, a hand plane from which the blade is removed, a framestructure formed to receive a' portion of the plane, means for securingthe structure thereto, a long blade disposed at one side andlongitudinally of the plane and projecting laterally from the bottompart of the hand plane, and means securing the blade to the framestructure, said hand plane constituting a handle.

2. A planing tool of the character stated for attachment to av handplane body, said planing tool comprising a frame structure, means. forplane body for to extend lengthwise of the plane body, said memberhaving a downwardly bowed longitudinal bottom edge. a longlongitudinally bowed blade of said bowed edge, the blade width extendinglaterally from the adjacent side of the plane body, one transverse edgeof the blade being sharpened, means for changing the bow of said blade,and means for moving the blade bodily perpendicularly to its. path. ofworking movement without changing its curvature.

3. The invention as stated in claim 2, wherein the said'means forchanging the bow of said blade comprises a plurality of screws supportedfor: free rotation by said elongate engaged. claim 2, wherein with theelongate the head and said cross members by which vertical adjustment ofthe head and blade may be effected.

6. Theinvention as set forth in claim 5, wherein each of said crossmembers has a portion of the end adjacent to the head projected tooverlie the head, and said coupling means comprising vertical screwseach freely extending through the projecting portion of a cross memberand having its lower end threadably engaged in the underlying head.

7 The invention as set forth in claim 5, wherein 6- lower end threadablyengaged in the underlying head, and coil spring members each surroundinga screw and interposed between the projecting end of the adjacent crossmember and the head and resisting upward movement of the head and blade.

KENNETH D. WHITE.

Name Date Ahlvin Aug. 16, 1927 Number

